Espresso Machine Speed Rating
The more of the following elements that are included in a machine’s construction the faster the espresso machine will be:
Boiler size larger size means more hot water is available for pulling multiple shots and more steam will be also be available for frothing multiple drinks
Heat Exchanger this allows for hot water and steam to be available at the same time
Boiler construction better construction means less heat is lost, keeping water at optimum temperature
Water tank size gives you more water between fill-ups
Direct water line gives you unlimited water
Unpressurized tank able to refill the water tank while the machine is on
Water wand gives you hot water on demand for Americanos
Solenoid valve alleviates pressure on the grounds in the portafilter which eliminates wait time between shots
